/*******************************************************************************
* libretroshare/src/gxs: gxsdataservice.h *
* *
* libretroshare: retroshare core library *
* *
* Copyright 2011-2012 by Evi-Parker Christopher *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this program. If not, see . *
* *
*******************************************************************************/
#ifndef RSDATASERVICE_H
#define RSDATASERVICE_H
#include "gxs/rsgds.h"
#include "util/retrodb.h"
class MsgUpdate
{
public:
//MsgUpdate(){}
//MsgUpdate(const MsgUpdate& ){}//hier müsste ein echter constructor sein
RsGxsMessageId msgId;
ContentValue cv;
};
class RsDataService : public RsGeneralDataService
{
public:
RsDataService(const std::string& serviceDir, const std::string& dbName, uint16_t serviceType,
RsGxsSearchModule* mod = NULL, const std::string& key = "");
virtual ~RsDataService();
/*!
* Retrieves all msgs
* @param reqIds requested msg ids (grpId,msgId), leave msg list empty to get all msgs for the grp
* @param msg result of msg retrieval
* @param cache whether to store results of this retrieval in memory for faster later retrieval
* @return error code
*/
int retrieveNxsMsgs(const GxsMsgReq& reqIds, GxsMsgResult& msg, bool cache, bool withMeta = false);
/*!
* Retrieves groups, if empty, retrieves all grps, if map is not empty
* only retrieve entries, if entry cannot be found, it is removed from map
* @param grp retrieved groups
* @param withMeta this initialise the metaData member of the nxsgroups retrieved
* @param cache whether to store retrieval in mem for faster later retrieval
* @return error code
*/
int retrieveNxsGrps(std::map& grp, bool withMeta, bool cache);
/*!
* Retrieves meta data of all groups stored (most current versions only)
* @param cache whether to store retrieval in mem for faster later retrieval
* @return error code
*/
int retrieveGxsGrpMetaData(RsGxsGrpMetaTemporaryMap& grp);
/*!
* Retrieves meta data of all groups stored (most current versions only)
* @param grpIds grpIds for which to retrieve meta data
* @param msgMeta meta data result as map of grpIds to array of metadata for that grpId
* @param cache whether to store retrieval in mem for faster later retrieval
* @return error code
*/
int retrieveGxsMsgMetaData(const GxsMsgReq& reqIds, GxsMsgMetaResult& msgMeta);
/*!
* remove msgs in data store
* @param grpId group Id of message to be removed
* @param msgIds ids of messages to be removed
* @return error code
*/
int removeMsgs(const GxsMsgReq& msgIds);
/*!
* remove groups in data store listed in grpIds param
* @param grpIds ids of groups to be removed
* @return error code
*/
int removeGroups(const std::vector& grpIds);
/*!
* Retrieves all group ids in store
* @param grpIds all grpids in store is inserted into this vector
* @return error code
*/
int retrieveGroupIds(std::vector &grpIds);
/*!
* Retrives all msg ids in store
* @param grpId groupId of message ids to retrieve
* @param msgId msgsids retrieved
* @return error code
*/
int retrieveMsgIds(const RsGxsGroupId& grpId, RsGxsMessageId::std_set& msgId);
/*!
* @return the cache size set for this RsGeneralDataService in bytes
*/
uint32_t cacheSize() const;
/*!
* @param size size of cache to set in bytes
*/
int setCacheSize(uint32_t size);
/*!
* Stores a list of signed messages into data store
* @param msg map of message and decoded meta data information
* @return error code
*/
int storeMessage(const std::list& msg);
/*!
* Stores a list of groups in data store
* @param grp map of group and decoded meta data
* @return error code
*/
int storeGroup(const std::list& grp);
/*!
* Updates group entries in Db
* @param grp map of group and decoded meta data
* @return error code
*/
int updateGroup(const std::list& grsp);
/*!
* @param metaData The meta data item to update
* @return error code
*/
int updateMessageMetaData(MsgLocMetaData& metaData);
/*!
* @param metaData The meta data item to update
* @return error code
*/
int updateGroupMetaData(GrpLocMetaData& meta);
/*!
* Completely clear out data stored in
* and returns this to a state
* as it was when first constructed
* @return error code
*/
int resetDataStore();
bool validSize(RsNxsMsg* msg) const;
bool validSize(RsNxsGrp* grp) const;
/*!
* Convenience function used to only update group keys. This is used when sending
* publish keys between peers.
* @return SQL error code
*/
int updateGroupKeys(const RsGxsGroupId& grpId,const RsTlvSecurityKeySet& keys, uint32_t subscribe_flags) ;
private:
/*!
* Retrieves all the msg results from a cursor
* @param c cursor to result set
* @param msgs messages retrieved from cursor are stored here
*/
void locked_retrieveMessages(RetroCursor* c, std::vector& msgs, int metaOffset);
/*!
* Retrieves all the grp results from a cursor
* @param c cursor to result set
* @param grps groups retrieved from cursor are stored here
* @param withMeta this initialise the metaData member of the nxsgroups retrieved
*/
void locked_retrieveGroups(RetroCursor* c, std::vector& grps, int metaOffset);
/*!
* Retrieves all the msg meta results from a cursor
* @param c cursor to result set
* @param metaSet message metadata retrieved from cursor are stored here
*/
void locked_retrieveMsgMeta(RetroCursor* c, std::vector& msgMeta);
/*!
* extracts a msg meta item from a cursor at its
* current position
*/
RsGxsMsgMetaData* locked_getMsgMeta(RetroCursor& c, int colOffset);
/*!
* extracts a grp meta item from a cursor at its
* current position
*/
RsGxsGrpMetaData* locked_getGrpMeta(RetroCursor& c, int colOffset, bool use_cache);
/*!
* extracts a msg item from a cursor at its
* current position
*/
RsNxsMsg* locked_getMessage(RetroCursor& c);
/*!
* extracts a grp item from a cursor at its
* current position
*/
RsNxsGrp* locked_getGroup(RetroCursor& c);
/*!
* Creates an sql database and its associated file
* also creates the message and groups table
* @param isNewDatabase is new database
*/
void initialise(bool isNewDatabase);
/*!
* Remove entries for data base
* @param msgIds
*/
bool locked_removeMessageEntries(const GxsMsgReq& msgIds);
bool locked_removeGroupEntries(const std::vector& grpIds);
private:
/*!
* Start release update
* @param release
* @return true/false
*/
bool startReleaseUpdate(int release);
/*!
* Finish release update
* @param release
* @param result
* @return true/false
*/
bool finishReleaseUpdate(int release, bool result);
private:
RsMutex mDbMutex;
std::list mMsgColumns;
std::list mMsgMetaColumns;
std::list mMsgColumnsWithMeta;
std::list mMsgIdColumn;
std::list mGrpColumns;
std::list mGrpMetaColumns;
std::list mGrpColumnsWithMeta;
std::list mGrpIdColumn;
// Message meta column
int mColMsgMeta_GrpId;
int mColMsgMeta_TimeStamp;
int mColMsgMeta_NxsFlags;
int mColMsgMeta_SignSet;
int mColMsgMeta_NxsIdentity;
int mColMsgMeta_NxsHash;
int mColMsgMeta_MsgId;
int mColMsgMeta_OrigMsgId;
int mColMsgMeta_MsgStatus;
int mColMsgMeta_ChildTs;
int mColMsgMeta_MsgParentId;
int mColMsgMeta_MsgThreadId;
int mColMsgMeta_Name;
int mColMsgMeta_NxsServString;
int mColMsgMeta_RecvTs;
int mColMsgMeta_NxsDataLen;
// Message columns
int mColMsg_GrpId;
int mColMsg_NxsData;
int mColMsg_MetaData;
int mColMsg_MsgId;
// Message columns with meta
int mColMsg_WithMetaOffset;
// Group meta columns
int mColGrpMeta_GrpId;
int mColGrpMeta_TimeStamp;
int mColGrpMeta_NxsFlags;
// int mColGrpMeta_SignSet;
int mColGrpMeta_NxsIdentity;
int mColGrpMeta_NxsHash;
int mColGrpMeta_KeySet;
int mColGrpMeta_SubscrFlag;
int mColGrpMeta_Pop;
int mColGrpMeta_MsgCount;
int mColGrpMeta_Status;
int mColGrpMeta_Name;
int mColGrpMeta_LastPost;
int mColGrpMeta_OrigGrpId;
int mColGrpMeta_ServString;
int mColGrpMeta_SignFlags;
int mColGrpMeta_CircleId;
int mColGrpMeta_CircleType;
int mColGrpMeta_InternCircle;
int mColGrpMeta_Originator;
int mColGrpMeta_AuthenFlags;
int mColGrpMeta_ParentGrpId;
int mColGrpMeta_RecvTs;
int mColGrpMeta_RepCutoff;
int mColGrpMeta_NxsDataLen;
// Group columns
int mColGrp_GrpId;
int mColGrp_NxsData;
int mColGrp_MetaData;
// Group columns with meta
int mColGrp_WithMetaOffset;
// Group id columns
int mColGrpId_GrpId;
// Msg id columns
int mColMsgId_MsgId;
std::string mServiceDir;
std::string mDbName;
std::string mDbPath;
uint16_t mServType;
RetroDb* mDb;
// used to store metadata instead of reading it from the database.
// The boolean variable below is also used to force re-reading when
// the entre list of grp metadata is requested (which happens quite often)
void locked_clearGrpMetaCache(const RsGxsGroupId& gid);
void locked_updateGrpMetaCache(const RsGxsGrpMetaData& meta);
std::map mGrpMetaDataCache ;
std::list > mOldCachedItems ;
bool mGrpMetaDataCache_ContainsAllDatabase ;
};
#endif // RSDATASERVICE_H